v3.26.1
Significant events for the year ended December 31, 2025 and the three-month period ended March 31, 2026 and subsequent events - Subsequent events (Details)
€ / shares in Units, $ / shares in Units, € in Thousands, $ in Millions
3 Months Ended
Jun. 30, 2026
EUR (€)
May 07, 2026
EUR (€)
€ / shares
shares
May 07, 2026
USD ($)
$ / shares
shares
May 04, 2026
EUR (€)
May 04, 2026
USD ($)
Apr. 30, 2026
Mar. 31, 2026
EUR (€)
shares
Dec. 31, 2025
EUR (€)
shares
Jul. 28, 2025
$ / shares
Jul. 28, 2025
€ / shares
Jul. 23, 2025
Mar. 31, 2025
shares
Dec. 31, 2024
shares
Disclosure of detailed information about borrowings [line items]                          
Closing foreign exchange rate                     1.1726    
Financial liabilities—non-current portion             € 33,110 € 30,790          
Net deferred tax liabilities             € 6,076 € 5,848          
Number of shares issued (in shares) | shares             79,291,188 78,536,412       63,418,749 63,347,837
Royalty certificates                          
Disclosure of detailed information about borrowings [line items]                          
Financial liabilities—non-current portion             € 32,764 € 30,237          
Forecast                          
Disclosure of detailed information about borrowings [line items]                          
Royalty expense € 43,000                        
Current tax expense (income) € (6,100)                        
ADS                          
Disclosure of detailed information about borrowings [line items]                          
Issue of equity, offering price per share (in dollar/euro per share) | $ / shares                 $ 64.00        
Ordinary shares                          
Disclosure of detailed information about borrowings [line items]                          
Issue of equity, offering price per share (in dollar/euro per share) | € / shares                   € 54.58      
Repurchase of royalty certificates agreement                          
Disclosure of detailed information about borrowings [line items]                          
Purchase price of royalty certificates   € 76,466   € 76,500 $ 90                
Cash payment for royalty certificates | $     $ 45                    
Interest-free vendor loan, royalty certificates | $     $ 45                    
Closing foreign exchange rate           1.1702              
Repurchase of royalty certificates agreement | Royalty certificates                          
Disclosure of detailed information about borrowings [line items]                          
Financial liabilities—non-current portion   € 33,500                      
Repurchase of royalty certificates agreement | ADS                          
Disclosure of detailed information about borrowings [line items]                          
Issue of equity, offering price per share (in dollar/euro per share) | $ / shares     $ 111.57                    
Number of shares issued (in shares) | shares   403,347 403,347                    
Repurchase of royalty certificates agreement | Ordinary shares                          
Disclosure of detailed information about borrowings [line items]                          
Issue of equity, offering price per share (in dollar/euro per share) | € / shares   € 95.34                      
Repurchase of royalty certificates agreement, cash consideration                          
Disclosure of detailed information about borrowings [line items]                          
Purchase price of royalty certificates   € 38,200                      
Repurchase of royalty certificates agreement, equity consideration                          
Disclosure of detailed information about borrowings [line items]                          
Purchase price of royalty certificates   € 38,200